HX40 Flange
🛠️ HX40 4.00" Turbo Outlet Flange – Mild Steel Weld Flange for 2nd Gen S300 Downpipes
This HX40 4.00" Flange is designed for 2nd Gen Dodge Cummins trucks running S300 turbos with an HX40-style outlet. CNC-cut from mild steel, this weld-on flange provides a durable, high-flow connection point for custom 4" downpipe fabrication.
With a 4.00" outer diameter, it’s perfect for welding directly to 4" exhaust tubing, while also allowing 3.50" pipe to slip inside the bore for cleaner, more versatile fabrication.
🚀 Key Features & Benefits:
✅ Fits HX40-Style Outlets on 2nd Gen S300 Turbos
✅ 4.00" OD – Matches standard 4" exhaust pipe
✅ 3.50" Tubing Fits Inside – Ideal for slip-fit or stepped builds
✅ Mild Steel Construction – Weld-ready and cost-effective
✅ Great for Custom Downpipes, Race Rigs, and Street Builds
✅ Designed for High-Temp, High-Boost Diesel Applications
📦 What’s Included:
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(1) HX40 4.00" Mild Steel Weld Flange
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🔥 Build your downpipe right from the turbo out. Durable, weldable, and ready for boost—order your HX40 flange today.
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HX40 Flange
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.